The Eyelet,metallic, cataloged under National Stock Number 5325-00-018-8644, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-018-8644 |
| Primary Part Number | C56320-42 |
| Item Name | Eyelet,metallic |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Flange Outside Diameter | 0.385 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Barrel Outside Diameter | 0.246 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Flange Style | FLANGE |
| Barrel Style | STRAIGHT ROUND TYPE |
| Barrel Height | 0.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 188644 | General Motors Llc Dba General Motors Llc (USA) |
| C56320-42 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 410211-256 | 5/2 Secondary reference U.S. Government activity |
| 609-062 | 3/2 Design control — primary reference U.S. Government activity |
| SE84NP | C/1 Advisory reference — outside the item-of-supply concept Usm Corp Sub of Emhart Industries Inc |
| SE-84 BRASS | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| 188644 | 5/9 Secondary reference General Motors Corp |
| EY250-4 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-00-018-8644 is a Eyelet,metallic, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-018-8644 has 2 manufacturer part numbers on file: 188644 (General Motors Llc Dba General Motors Llc), C56320-42 (Raytheon Company Dba Raytheon Co).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-329-3916. Verify interchangeability with system specifications before substitution.
Key specifications for C56320-42: Flange Outside Diameter: 0.385 INCHES NOMINAL IN; Surface Treatment: NICKEL OVERALL; Barrel Outside Diameter: 0.246 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.